X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=Debian%2FDgit.pm;h=641a917ee25cb9ced753deb12a5519d2e6bc45f5;hb=0143e613578b90d0e320fe4bab748b7a8726fa13;hp=6932d14a7d07f32ae57a8ef4005643c4be1ea903;hpb=d395baaa070686dce79a9ad7cd02777a4caa4778;p=dgit.git

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index 6932d14a..641a917e 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -1,10 +1,13 @@
-#
+# -*- perl -*-
 
 package Debian::Dgit;
 
 use strict;
 use warnings;
 
+use POSIX;
+use IO::Handle;
+
 BEGIN {
     use Exporter   ();
     our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
@@ -13,22 +16,26 @@ BEGIN {
     @ISA         = qw(Exporter);
     @EXPORT      = qw(debiantag server_branch server_ref
                       stat_exists git_for_each_ref
-                      $package_re $branchprefix);
-    %EXPORT_TAGS = ( policyflags => qw() );
-    @EXPORT_OK   = qw();
+                      $package_re $component_re $branchprefix
+                      initdebug enabledebug printdebug debugcmd
+                      $debugprefix $debug
+                      shellquote printcmd);
+    %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
+    @EXPORT_OK   = @{ $EXPORT_TAGS{policyflags} };
 }
 
 our @EXPORT_OK;
 
 our $package_re = '[0-9a-z][-+.0-9a-z]*';
+our $component_re = '[0-9a-zA-Z][-+.0-9a-zA-Z]*';
 our $branchprefix = 'dgit';
 
 # policy hook exit status bits
 # see dgit-repos-server head comment for documentation
 # 1 is reserved in case something fails with `exit 1'
-sub NOFFCHECK () { return 2; }
-sub FRESHREPO () { return 4; }
-# 128 is reserved
+sub NOFFCHECK () { return 0x2; }
+sub FRESHREPO () { return 0x4; }
+# 0x80 is reserved
 
 sub debiantag ($) { 
     my ($v) = @_;
@@ -51,7 +58,7 @@ sub git_for_each_ref ($$) {
     # calls $func->($objid,$objtype,$fullrefname,$reftail);
     # $reftail is RHS of ref after refs/\w+/
     # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
-    my $fh = new IO::File, "-|", qw(git for-each-ref), $pattern or die $!;
+    my $fh = new IO::File "-|", qw(git for-each-ref), $pattern or die $!;
     while (<$fh>) {
 	m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?";
 	$func->($1,$2,$3,$4);
@@ -70,4 +77,50 @@ sub git_for_each_tag_referring ($$) {
     });
 }
 
+our $debugprefix;
+our $debug = 0;
+
+sub initdebug ($) { 
+    ($debugprefix) = @_;
+    open ::DEBUG, ">/dev/null" or die $!;
+}
+
+sub enabledebug () {
+    open ::DEBUG, ">&STDERR" or die $!;
+    ::DEBUG->autoflush(1);
+    $debug ||= 1;
+}
+    
+sub printdebug {
+    print ::DEBUG $debugprefix, @_ or die $! if $debug>0;
+}
+
+sub shellquote {
+    my @out;
+    local $_;
+    foreach my $a (@_) {
+	$_ = $a;
+	if (m{[^-=_./0-9a-z]}i) {
+	    s{['\\]}{'\\$&'}g;
+	    push @out, "'$_'";
+	} else {
+	    push @out, $_;
+	}
+    }
+    return join ' ', @out;
+}
+
+sub printcmd {
+    my $fh = shift @_;
+    my $intro = shift @_;
+    print $fh $intro," " or die $!;
+    print $fh shellquote @_ or die $!;
+    print $fh "\n" or die $!;
+}
+
+sub debugcmd {
+    my $extraprefix = shift @_;
+    printcmd(\*::DEBUG,$debugprefix.$extraprefix,@_) if $debug>0;
+}
+
 1;